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US 6,618,657 B1Granted
Emergency call device for vehicles
AssigneeRobert Bosch GmbH
InventorsAndreas Geil, Joerg Jehlicka
Life of this patent
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Abstract
An emergency call device that transmits a distress message independently of damage to the vehicle electronic system, where the emergency call device transmits a first message, which contains at least the geographical location of the vehicle, when sensors detect a critical driving situation, even before an accident has actually occurred.
Claims10
An emergency call device for a vehicle, the vehicle including a sensor, comprising:
- a transmitter configured to transmit a first message when the sensor detects a critical driving situation prior to an accident by comparing a signal from the sensor to a threshold value, the sensor detecting at least a braking operation, the first message containing at least a geographical location of the vehicle, the transmitter further configured to transmit a second message after a conclusion of a preselected time span after the first message is transmitted, the second message one of declaring the first message to be invalid in the event that the sensor did not detect the accident within the preselected time span, and containing further information suitable for initiating emergency measures in a case of an actual detected accident.
A method for transmitting an emergency call for a vehicle, comprising:
- detecting a critical driving situation prior to an accident by comparing a signal from a sensor to a threshold value, the sensor detecting at least a braking operation;
- after detecting the critical driving situation, transmitting a first message containing at least a geographical location of the vehicle;
- and
- after a preselected time span after the first message is transmitted, transmitting a second message, the second message one of:
- declaring the first message to be invalid in the event the accident is not detected within the time span, and containing further information suitable for initiating emergency measures in a case of an actual detected accident.
2 more elements
Dependencies are inferred from the claim text.